Question about Hitachi 43UWX10B 43" Rear Projection Television

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Hitachi 43fdx01b convergence problem

The picture is purple and green outlined on left bottom also slight focus problem what can i do my self to correct where is the convergence board located and can i buy one ?and also is there any directions how to adjust and repair? thank you

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Re: hitachi 43fdx01b convergence problem

Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Below are details for both issues. Repair kits with instructions are also avail from

Common Problem #1) Convergence has gone out

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some pics of convergence problems.


69189a5.pngSOLUTION #1

For more more examples and find a fix using this link on Fixya

Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

TV set after fluid change



You can see some more examples and find a fix using this link on Fixya

Posted on Apr 19, 2011

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Re: hitachi 43fdx01b convergence problem

Have a professional replace convergence output Ic's and re-adjust.PCB replacement not necessary.

Posted on Sep 24, 2007

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Picture is unfocused, with green outline. Magic focus does not correct the problem.


See my tip at to repair your convergence problem.

Thanks for using FixYa and for the great rating.


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I have seen two different things cause this. The first and most common is the electrical failure of one or both convergence IC's. A handful of times, the data in the DCU became corrupted and I was able to enter the service mode, go to manual convergence and correct the one location that was off.

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It sounds like bad solder connections in the convergence output circuit. It may also be an intermittant convergence output ic which will need to be replaced.

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You have a convergence problem
If the set has auto focus and will not complete its cycle.
The Auto focus module is bad, (expensive)
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Good Day,

Sounds like the TV's convergence circuit has failed:
*Call an Authorized Service Center and them give you an estimate cost of the repair, or
*Repair it your self; get KIT 10 locally or B&D Enterprises
Good luck, big IRISH.

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hi i have same prob iv bin told its a convergence chip an thay r £150 ! thay go bout evry 6 years an its comon .. any way there coming 2 fix mine 2day so ill let u know if it sorts it out my mail is thanx

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sounds like convergance amp ic's see links below

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Sounds like convergence problems, set may have been moved lately and this can cause it. Did you try Magic Focus when the set was warm or did you try it when you just turn on? Set needs to be warm, before you try it. If nothing works you will need convergence kit

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